Gịnị bụ inverter?

Inverter bụ transformer DC gaa na AC, nke bụ usoro mgbanwe voltaji na ihe ntụgharị ahụ. Ihe ntụgharị ahụ na-agbanwe voltaji AC nke grid ike ka ọ bụrụ mmepụta DC 12V kwụsiri ike, ebe inverter na-agbanwe mmepụta voltaji DC 12V site na ihe nkwụnye ahụ ka ọ bụrụ AC voltaji dị elu; akụkụ abụọ ahụ na-ejikwa teknụzụ modulation obosara pulse (PWM) nke a na-ejikarị eme ihe. Akụkụ bụ isi bụ njikwa PWM agbakwunyere, ihe nkwụnye ahụ na-eji UC3842, inverter na-ejikwa chip TL5001. Oke voltaji ọrụ nke TL5001 bụ 3.6~40V, ọ nwekwara amplifier njehie, ihe nhazi, oscillator, ihe nrụpụta PWM nwere njikwa mpaghara nwụrụ anwụ, sekit nchekwa voltaji dị ala na sekit nchekwa sekit dị mkpụmkpụ.

Akụkụ njikọ ntinye: Akụkụ ntinye ahụ nwere akara atọ, VIN ntinye DC 12V, ENB voltaji na-arụ ọrụ na akara njikwa ugbu a nke Panel DIM. Adapter na-enye VIN, MCU na-enyekwa voltaji ENB na motherboard, uru ya bụkwa 0 ma ọ bụ 3V. Mgbe ENB=0, inverter anaghị arụ ọrụ, mgbe ENB=3V, inverter nọ n'ọnọdụ ọrụ nkịtị; na motherboard na-enye voltaji DIM, oke mgbanwe ya dịkwa n'etiti 0 na 5V. A na-enye ụkpụrụ DIM dị iche iche na njedebe nzaghachi nke njikwa PWM, ugbu a nke inverter na-enye na ibu ahụ ga-adịkwa iche. Ka uru DIM pere mpe, otú ahụ ka mmepụta ugbu a nke inverter na-eme ka ka ukwuu.

Mgbawa mmalite voltaji: Mgbe ENB dị elu, a na-emepụta voltaji dị elu iji mee ka ọkpọkọ ọkụ azụ nke Panel ahụ nwee ọkụ.

Onye njikwa PWM: Ọ nwere ọrụ ndị a: voltaji ntụaka dị n'ime, amplifier njehie, oscillator na PWM, nchedo oke voltaji, nchedo voltaji na-erughị ala, nchedo sekit dị mkpụmkpụ, na transistor mmepụta.

Mgbanwe DC: Sekit mgbanwe voltaji ahụ nwere tube MOS switch na inductor nchekwa ike. A na-eme ka pulse ntinye ahụ dịkwuo elu site na ihe na-eme ka push-pull dịkwuo elu ma na-akwali tube MOS ka ọ rụọ ọrụ mgbanwe, ka voltaji DC wee na-ana ma na-ewepụta inductor ahụ, ka nsọtụ nke ọzọ nke inductor wee nwee ike nweta voltaji AC.

Njem LC na-agbanwe agbanwe na mmepụta: hụ na voltaji 1600V dị mkpa maka oriọna ahụ ịmalite, ma belata voltaji ahụ ruo 800V mgbe oriọna ahụ malitere.

Nzaghachi voltaji mmepụta: mgbe ibu ahụ na-arụ ọrụ, a na-enye voltaji nlele azụ iji mee ka mmepụta voltaji nke inverter I kwụsie ike.

ọrụ
Inverter na-agbanwe ike DC (batrị, batrị nchekwa) ka ọ bụrụ ike AC (n'ozuzu 220v50HZ sine ma ọ bụ square wave). Dịka onye nkịtị si kwuo, inverter bụ ngwaọrụ nke na-agbanwe ọkụ kpọmkwem (DC) ka ọ bụrụ ọkụ alternating (AC). Ọ nwere akwa inverter, njikwa logic na sekit nzacha.
N'ikwu ya n'ụzọ dị mfe, inverter bụ ngwaọrụ eletrọnịkị nke na-agbanwe obere voltaji (12 ma ọ bụ 24 volts ma ọ bụ 48 volts) ike DC ka ọ bụrụ 220 volts AC. N'ihi na a na-agbanwekarị ike AC 220 volts ka ọ bụrụ ike DC maka ojiji, ọrụ nke inverter bụ ihe dị iche, ya mere aha ya bụ. N'oge "agagharị", ụlọ ọrụ mkpanaka, nkwukọrịta ekwentị, ntụrụndụ ekwentị na ntụrụndụ. Mgbe ị na-agagharị, ọ bụghị naanị obere voltaji kpọmkwem ka achọrọ site na batrị ma ọ bụ batrị nchekwa, kamakwa 220-volt alternating current, nke dị mkpa na ndụ kwa ụbọchị. Inverters nwere ike izute mkpa ndị a.